525073389 has 16 divisors (see below), whose sum is σ = 710568000. Its totient is φ = 344843136.

The previous prime is 525073369. The next prime is 525073403. The reversal of 525073389 is 983370525.

It is not a de Polignac number, because 525073389 - 2¹⁶ = 525007853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 525073389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525073369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72087 + ... + 79035.

It is an arithmetic number, because the mean of its divisors is an integer number (44410500).

Almost surely, 2^525073389 is an apocalyptic number.

It is an amenable number.

525073389 is a deficient number, since it is larger than the sum of its proper divisors (185494611).

525073389 is a wasteful number, since it uses less digits than its factorization.

525073389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7324.

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 525073389 is about 22914.4798980906. The cubic root of 525073389 is about 806.7519110751.

The spelling of 525073389 in words is "five hundred twenty-five million, seventy-three thousand, three hundred eighty-nine".